diff --git a/src/features/workbench/workspace/workbench-main-frame.tsx b/src/features/workbench/workspace/workbench-main-frame.tsx
index 4cf76c6..c85d2b3 100644
--- a/src/features/workbench/workspace/workbench-main-frame.tsx
+++ b/src/features/workbench/workspace/workbench-main-frame.tsx
@@ -1,6 +1,11 @@
-import { ArrowLeft, FileChartColumnIncreasing } from "lucide-react";
+import { ArrowLeft } from "lucide-react";
 import { AnimatePresence, motion, useReducedMotion } from "motion/react";
 import type { ReactNode } from "react";
+import {
+  MAP_CONTROL_HOVER_CLASS_NAME,
+  MAP_CONTROL_RADIUS_CLASS_NAME,
+  MAP_CONTROL_SURFACE_CLASS_NAME
+} from "@/features/map/core";
 import { cn } from "@/shared/ui/cn";
 import { OPERATIONAL_TIMELINE_LAYOUT } from "../operational-timeline/operational-timeline-model";
 import { AnalysisArtifactWorkspace } from "./analysis-document-view";
@@ -81,10 +86,14 @@ export function WorkbenchMainFrame({
             <button
               type="button"
               onClick={() => onSetArtifactView("focus")}
-              className="pointer-events-auto absolute left-3 top-3 z-20 inline-flex h-10 items-center gap-2 rounded-md bg-slate-950 px-3 text-xs font-semibold text-white shadow-[0_8px_24px_rgba(15,23,42,0.22)] hover:bg-slate-800 active:scale-95 lg:left-4 lg:top-4"
+              className={cn(
+                "pointer-events-auto absolute left-3 top-3 z-20 inline-flex h-10 items-center gap-2 px-3 text-xs font-semibold lg:left-[max(1rem,calc(6rem-var(--workbench-agent-current-width)))] lg:top-4",
+                MAP_CONTROL_RADIUS_CLASS_NAME,
+                MAP_CONTROL_SURFACE_CLASS_NAME,
+                MAP_CONTROL_HOVER_CLASS_NAME
+              )}
             >
               <ArrowLeft size={15} aria-hidden="true" />
-              <FileChartColumnIncreasing size={15} aria-hidden="true" />
               返回分析成果
             </button>
           ) : null}